Standard & Poor's

The Standard & Poor's/Investortools - Main Index	For Period Ending October 2011
(Expanded Deletion Criteria)	See Explanation

Cumulative Returns Data

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	# Of Cusips	Total Return	Beg. Mkt. Val (Mil)	Mkt. Wt. Coupon	Mkt. Wt. Beginning Yield	Mkt. Wt. Ending Yield	Ending Mod Duration	Ending Yrs. To Price Date
Maturity 0 - 1 Year	3,338	0.053%	65,801	4.993%	0.644%	0.546%	0.45	0.46
Maturity 1 - 2 Year	3,370	0.003%	66,411	4.955%	0.753%	0.811%	1.35	1.42
Maturity 2 - 3 Year	3,234	-0.206%	56,321	4.883%	0.975%	1.112%	2.19	2.35
Maturity 3 - 4 Year	3,023	-0.557%	52,134	4.822%	1.367%	1.581%	2.93	3.23
Maturity 4 - 5 Year	2,974	-0.596%	51,168	4.955%	1.579%	1.773%	3.56	4.02
Maturity 5 - 6 Year	2,881	-0.646%	48,440	4.887%	1.931%	2.122%	4.17	4.79
Maturity 6 - 7 Year	2,741	-0.615%	44,556	4.942%	2.211%	2.376%	4.65	5.45
Maturity 7 - 8 Year	2,562	-0.562%	43,022	4.978%	2.487%	2.631%	5.11	6.13
Maturity 8 - 9 Year	2,218	-0.613%	40,281	4.974%	2.786%	2.923%	5.41	6.60
Maturity 9 - 10 Year	2,142	-0.508%	39,890	4.993%	2.954%	3.081%	5.47	6.74
Maturity 10 - 12 Year	4,105	-0.417%	72,965	4.992%	3.251%	3.366%	5.39	6.72
Maturity 12 - 15 Year	5,984	-0.234%	103,544	5.028%	3.773%	3.871%	5.50	7.07
Maturity 15 - 20 Year	8,393	-0.257%	177,073	5.094%	4.322%	4.467%	6.00	8.35
Maturity 20+ Year	11,015	-0.396%	400,097	5.123%	4.798%	4.911%	7.46	11.81

Main Index

57,980

-0.360%

1,261,706

5.029%

3.282%

3.399%

5.27

7.39

One Year History

(Indices and data produced before November 2002 reflect the original limited deletion criteria.)

Period	# Of Cusips	Total Return	Beg. Mkt. Val (Mil)	Mkt. Wt. Coupon	Mkt. Wt. Beginning Yield	Mkt. Wt. Ending Yield	Ending Mod Duration	Ending Yrs. To Price Date
Sep 2011	57,942	1.150%	1,247,144	5.033%	3.388%	3.279%	5.17	7.11
Aug 2011	57,411	1.449%	1,225,580	5.039%	3.593%	3.384%	5.45	7.80
Jul 2011	56,974	1.049%	1,216,951	5.042%	3.708%	3.582%	5.75	8.51
Jun 2011	56,839	0.534%	1,217,755	5.044%	3.713%	3.684%	5.90	8.93
May 2011	56,785	1.911%	1,199,947	5.047%	3.927%	3.708%	5.92	9.04
Apr 2011	56,625	1.731%	1,182,395	5.049%	4.120%	3.915%	6.34	10.10
Mar 2011	56,649	-0.273%	1,187,003	5.046%	4.054%	4.117%	6.82	11.22
Feb 2011	56,674	1.563%	1,169,418	5.045%	4.199%	4.042%	6.69	10.84
Jan 2011	57,407	-0.928%	1,199,608	5.047%	4.057%	4.188%	7.02	11.59
Dec 2010	57,309	-1.900%	1,226,452	5.044%	3.738%	4.058%	6.75	10.89
Nov 2010	56,905	-2.127%	1,251,057	5.045%	3.348%	3.724%	5.97	9.01
Oct 2010	56,510	-0.243%	1,248,200	5.050%	3.260%	3.340%	5.30	7.30

*The Main Index contains all bonds in the Standard & Poor's/Investortools Municipal Bond Index Universe.

For additional information please contact:

Erin Cropley Mgr. Derivative and Index Products
Standard & Poor's Securities Evaluations, Inc. at 212 438-4739
or
Scott Bradley Executive Vice President
Investortools, Inc. at 630 553-0040
or
visit the Investortools website at www.invtools.com.

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